EP 0454886 B1 19951227 - An improved method and apparatus for measurement of oxygen concentration
Title (en)
An improved method and apparatus for measurement of oxygen concentration
Title (de)
Verbessertes Verfahren und Apparat zum Messen der Sauerstoffkonzentration
Title (fr)
Méthode et appareil améliorés pour mesurer la concentration en oxygène
Publication
Application
Priority
US 34342389 A 19890426
Abstract (en)
[origin: EP0454886A1] The method and material for measuring oxygen concentration use indicators, namely polynuclear aromatics, or more specifically, perylene derivatives, together with an appropriate matrix, such as crosslinked polydimethylsiloxane to provide a sensor element for insertion in the blood stream, preferably by means of an appropriate catheter system. By irradiating the resulting matrix with light of a specific wavelength or wavelength range, which may or may not be the wavelength of maximum absorption, while measuring the fluorescent emission over at least two other specific wavelength ranges, different portions of the emission spectrum have been observed to have different sensitivities to oxygen quenching. <IMAGE>
IPC 1-7
IPC 8 full level
A61B 5/00 (2006.01); G01N 21/64 (2006.01)
CPC (source: EP US)
A61B 5/1459 (2013.01 - EP US); G01N 21/643 (2013.01 - EP US); G01N 2021/6417 (2013.01 - EP US); G01N 2021/6484 (2013.01 - EP US); Y10T 436/207497 (2015.01 - EP US); Y10T 436/209163 (2015.01 - EP US); Y10T 436/255 (2015.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0454886 A1 19911106; EP 0454886 B1 19951227; CA 2015415 A1 19901026; JP H0363550 A 19910319; US 5094959 A 19920310
DOCDB simple family (application)
EP 90108333 A 19900502; CA 2015415 A 19900425; JP 11157990 A 19900426; US 34342389 A 19890426